The Peter Faust Dam is an earth-filled embankment dam dam across the Proserpine River, located near Proserpine, in the eponymous settlement, in the Whitsunday Region of North Queensland, Australia. The resultant reservoir is called Lake Proserpine. Completed in 1990, the dam was built for the purposes of irrigation, flood mitigation, supply of potable water, and recreation.
Thiess Bros was contracted to construct the dam. Construction of the Peter Faust Dam began in May 1989 and was completed in December 1990, four and a half months ahead of schedule, in time for a massive downpour which filled the dam.
The earth-filled dam wall is high and long. The resultant reservoir has capacity of when full, covering an area of , drawn from a catchment area of . The uncontrolled ungated ogee crest spillway has a concrete-lined chute with flip bucket, and is capable of handling .
The dam reached a level of 98.8% in March 1991, and finally overflowed for the first time in December 2010. It reached its highest level of 1.48m above the spillway in March 2011. The dam overflowed again in March 2012, and March 2013. The dam reached its lowest level of 10.7% in 2007. The dam overflowed again on March 7th 2026.
The dam was named in honour of Peter Faust, a former Townsville mayor, whose family had farmed in the district since 1895. Faust was the driving force for the establishment of the dam.
A Stocked Impoundment Permit is required to fish in the dam.